magistrala/clients/api/http/decode.go

// Copyright (c) Abstract Machines
// SPDX-License-Identifier: Apache-2.0

package http

import (
	"context"
	"encoding/json"
	"net/http"
	"strings"

	api "github.com/absmach/supermq/api/http"
	apiutil "github.com/absmach/supermq/api/http/util"
	"github.com/absmach/supermq/clients"
	"github.com/absmach/supermq/pkg/errors"
	"github.com/go-chi/chi/v5"
)

const clientID = "clientID"

func decodeViewClient(_ context.Context, r *http.Request) (interface{}, error) {
	req := viewClientReq{
		id: chi.URLParam(r, clientID),
	}

	return req, nil
}

func decodeListClients(_ context.Context, r *http.Request) (interface{}, error) {
	s, err := apiutil.ReadStringQuery(r, api.StatusKey, api.DefClientStatus)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	o, err := apiutil.ReadNumQuery[uint64](r, api.OffsetKey, api.DefOffset)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	l, err := apiutil.ReadNumQuery[uint64](r, api.LimitKey, api.DefLimit)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	m, err := apiutil.ReadMetadataQuery(r, api.MetadataKey, nil)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	n, err := apiutil.ReadStringQuery(r, api.NameKey, "")
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	t, err := apiutil.ReadStringQuery(r, api.TagKey, "")
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	id, err := apiutil.ReadStringQuery(r, api.IDOrder, "")
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	p, err := apiutil.ReadStringQuery(r, api.PermissionKey, api.DefPermission)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}

	lp, err := apiutil.ReadBoolQuery(r, api.ListPerms, api.DefListPerms)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	st, err := clients.ToStatus(s)
	if err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, err)
	}
	req := listClientsReq{
		status:     st,
		offset:     o,
		limit:      l,
		metadata:   m,
		name:       n,
		tag:        t,
		permission: p,
		listPerms:  lp,
		userID:     chi.URLParam(r, "userID"),
		id:         id,
	}
	return req, nil
}

func decodeUpdateClient(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	req := updateClientReq{
		id: chi.URLParam(r, clientID),
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}

	return req, nil
}

func decodeUpdateClientTags(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	req := updateClientTagsReq{
		id: chi.URLParam(r, clientID),
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}

	return req, nil
}

func decodeUpdateClientCredentials(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	req := updateClientCredentialsReq{
		id: chi.URLParam(r, clientID),
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}

	return req, nil
}

func decodeCreateClientReq(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	var c clients.Client
	if err := json.NewDecoder(r.Body).Decode(&c); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}
	req := createClientReq{
		client: c,
	}

	return req, nil
}

func decodeCreateClientsReq(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	c := createClientsReq{}
	if err := json.NewDecoder(r.Body).Decode(&c.Clients); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}

	return c, nil
}

func decodeChangeClientStatus(_ context.Context, r *http.Request) (interface{}, error) {
	req := changeClientStatusReq{
		id: chi.URLParam(r, clientID),
	}

	return req, nil
}

func decodeSetClientParentGroupStatus(_ context.Context, r *http.Request) (interface{}, error) {
	if !strings.Contains(r.Header.Get("Content-Type"), api.ContentType) {
		return nil, errors.Wrap(apiutil.ErrValidation, apiutil.ErrUnsupportedContentType)
	}

	req := setClientParentGroupReq{
		id: chi.URLParam(r, clientID),
	}
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		return nil, errors.Wrap(apiutil.ErrValidation, errors.Wrap(errors.ErrMalformedEntity, err))
	}
	return req, nil
}

func decodeRemoveClientParentGroupStatus(_ context.Context, r *http.Request) (interface{}, error) {
	req := removeClientParentGroupReq{
		id: chi.URLParam(r, clientID),
	}

	return req, nil
}

func decodeDeleteClientReq(_ context.Context, r *http.Request) (interface{}, error) {
	req := deleteClientReq{
		id: chi.URLParam(r, clientID),
	}

	return req, nil
}